Henrico mom - babysitting coop

We are new to the Richmond area and have bought a home in Henrico (close to 3 Lakes Park). We have a 12 year old and a 2 year old. We would like to join a babysitting coop to get to know others and enjoy some time out together. We checked on-line but couldn't really find anything. We heard that there might be one in the Ginter Park area (just South of us) but can't find anyone who knows who to contact. Would love to hear from anyone with info. Thank you.